CN109891062A - Camshaft for internal combustion engine - Google Patents
Camshaft for internal combustion engine Download PDFInfo
- Publication number
- CN109891062A CN109891062A CN201780067397.8A CN201780067397A CN109891062A CN 109891062 A CN109891062 A CN 109891062A CN 201780067397 A CN201780067397 A CN 201780067397A CN 109891062 A CN109891062 A CN 109891062A
- Authority
- CN
- China
- Prior art keywords
- cam member
- camshaft
- sleeve
- support shaft
- outer toothed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 210000000515 tooth Anatomy 0.000 description 41
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 241001433879 Camarea Species 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
- F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
Abstract
The camshaft (1) that the present invention relates to a kind of for internal combustion engine, the camshaft has support shaft (2), cam member (3) and lockable mechanism (6), cam member is pushed in the outer toothed portion (5) of support shaft by interior teeth portion (4), cam member is fixed at least two shift positions relative to support shaft by lockable mechanism, lockable mechanism has the sleeve (10) being fixed in the transverse holes (22) of support shaft and the lock body (7) being contained in sleeve, lock body is separately inserted at least two lock groove (8a in cam member on shift position, in one in 8b), wherein, two in lock groove separate ground by intermediate isolating portion (23), it is arranged side by side along axial direction, and wherein, interior teeth portion is provided with the tooth socket (9) being sized so that, so that cam member crosses sleeve (10) Ground is pushed in outer toothed portion, and sleeve at least partly blocks outer toothed portion from axial side.Here, the internal diameter in intermediate isolating portion should be greater than the root diameter of interior teeth portion.The invention further relates to a kind of valve actuator of internal combustion engine for motor vehicle, which has above-mentioned camshaft.
Description
Technical field
The present invention relates to a kind of camshaft of multipart, which is used for the internal combustion engine of motor vehicle, and motor vehicle is for example
It is car, lorry or other commercial vehicles, internal combustion engine is, for example, petrol engine or diesel engine, which has bearing
Axis, cam member and lockable mechanism, cam member are elapsed by interior teeth portion onto the outer toothed portion of support shaft, and lockable mechanism consolidates cam member
It is scheduled at least two shift positions relative to support shaft, lockable mechanism has the sleeve being fixed in the transverse holes of support shaft
With the lock body being contained in sleeve, lock body is separately inserted at least two lock grooves in cam member on shift position
In one, wherein two in lock groove by intermediate isolating spaced-apart, along axial direction are arranged side by side, and wherein, interior
Teeth portion is provided with the tooth socket being sized so that, so that cam member is pushed in outer toothed portion with crossing sleeve, the sleeve is from axial direction
At least partly block outer toothed portion in side.Moreover, it relates to a kind of valve actuator for internal combustion engine, which is driven
Dynamic device has the camshaft.
Background technique
From the prior art of 10 2,015 010 751 A1 known conventional of DE.A kind of camshaft is disclosed in the publication,
Its cam member that there is at least one can move axially, for manipulating at least one valve.Camshaft also has drive shaft, should
Drive shaft has a teeth portion, and the teeth portion is for can axially movably bearer cams element.Locking unit is arranged to: by cam member
It is lockked in different switching positions.
10 2,011 001 660 A1 of DE discloses a kind of camshaft, and wherein the interior teeth portion of cam member is provided with so really
The tooth socket of scale cun so that cam member is pushed in outer toothed portion with crossing the centering protrusion of support shaft, the centering protrusion from
Block the outer toothed portion of support shaft in axial side.
However, being especially likely to occur following problem in terms of support shaft in this kind of camshaft.On the one hand, preferably structure
The edge that may be higher than sleeve with central point under given conditions for the lock body of ball is made, so that mobile in cam member
When, cam member may block.On the other hand, sleeve can be stretched out from the hole in support shaft far relatively with its top edge,
Thus sleeve seals the corresponding tooth socket in tooth shaft.Therefore cam member can not assemble.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to eliminate disadvantage known from the prior art, one is especially provided
The camshaft of kind multipart, the manufacture and assembly of the camshaft should be simplified.
According to the present invention, above-mentioned technical problem solves in the following way: so that the internal diameter in intermediate isolating portion is greater than interior
The root diameter of teeth portion.
Therefore, although sleeve is stretched out from support shaft, the setting of tooth socket also ensures assembly of the cam member in support shaft.
Sleeve can be displaced outwardly with its outboard end as far as possible radially again as a result, and at least two lock grooves can be with
Especially construct deeply.Due to the radial displacement or adjustment of lock groove, additional go is not needed ideally when manufacturing lock groove
Burring process.In the past, it is often necessary to the fringe region of each lock groove is processed by broaching tool, thus process two lock grooves it
Between intermediate isolating portion, especially together in above-mentioned position tooth.It can be omitted the procedure of processing now.
In addition advantageous embodiment is claimed in the dependent claims and is then further illustrated.
If sleeve have end section so, the end section radially from support shaft, in cross-section in circle
The side surface for the shaft segment that shape extends is stretched out, then lock body moves radially farther.This can be realized is come with bigger tolerance
Manufacture.
If the sleeve of guiding locking body radially outwardly exceeds the root circle of outer toothed portion, locks physical efficiency and pass through in design
Relatively simple measure is displaced outwardly as far as possible, this to single part to each other be matched with positive influence.
Lock groove that is being arranged side by side in the axial direction by two and passing through intermediate isolating spaced-apart, realizes locking wheel
Exterior feature, the locking profile can be with especially cheap at original manufacture.
Because the internal diameter in (no teeth portion) intermediate isolating portion is greater than the root diameter of interior teeth portion, lock groove diameter can
To increase, and lock body can further stretch out.
If interior teeth portion is embodied as having at least one tooth socket pair, wherein two tooth sockets of the tooth socket pair are by being arranged in him
Between tooth be circumferentially spatially separated from each other, then obtain it is on cam member, especially suitable for surmounting sleeve structurally
Come the structure pushed.
Therefore, in addition particularly advantageously, each tooth socket of tooth socket pair is formed with by end section in size and geometry
Protrusion matching.
If three or four tooth sockets arrange that multiple cam members can be with structure to being uniformly distributed circumferentially in interior teeth portion Shangdi
At three cylinders or the general part of the camshaft of four.
Also advantageously, lock body is designed to ball, ball can move in (being pressed into and/or press-fitted) sleeve
It is dynamic, and arrange with being radially pre-tensioned.Thereby, it is possible to the knot of lockable mechanism is manufactured in such a way that cost is especially cheap
Structure.
The invention further relates to a kind of valve actuator, which is used for the internal combustion engine of motor vehicle and has
Camshaft according to the present invention.
Detailed description of the invention
Below in conjunction with attached drawing, the present invention is further explained.Attached drawing is:
Fig. 1 is the camshaft cross section according to first embodiment of multipart according to the present invention, wherein camshaft exists
It is cut in the region of this lockable mechanism, which is used to fix cam member, support shaft relative to camshaft
Shift position, and wherein, the lock body of lockable mechanism has been moved into the lock groove in cam member,
Fig. 2 is the perspective view of the support shaft used in Fig. 1, wherein is clearly show together with lock body and sleeve
Lockable mechanism with respect to outer toothed portion side deviate arrangement,
Fig. 3 is the side view of support shaft according to fig. 2, wherein is clearly show relative to outer toothed portion radially
The arrangement of the sleeve of protrusion,
Fig. 4 is the perspective view of the cam member of cutting along longitudinal direction, it is known that wherein on the one hand focal point is such as from Fig. 1
The tooth socket pair being introduced into the interior teeth portion of cam member, further aspect is that on the inside of cam member, by cam member relative to branch
Two lock grooves of the fixed corresponding shift position of axis are held,
Fig. 5 be according to the perspective view for the cam member of Fig. 4 not being cut,
Fig. 6 be according to the side view of the cam member of Fig. 4 and Fig. 5, show be introduced into it is in interior teeth portion, offset with one another 180 °
Ground come the tooth socket pair arranged, and
Fig. 7 is the side view of cam member, which so implements according to other preferred second embodiment, so that convex
There are four tooth sockets pair for offsetting with one another 90 ° respectively in the interior teeth portion of gear member in total.
These attached drawings are only schematical and are used only for understanding the present invention.Identical element is furnished with identical attached drawing
Label.The feature of each embodiment can be exchanged with each other.
Specific embodiment
The cross section of the camshaft 1 of multipart according to the present invention is shown in FIG. 1.Camshaft 1 is implemented as sliding
Formula camshaft.Support shaft 2 can be especially found out in this illustration, which extend into the through-hole of cam member 3.Cam member 3 has
There is interior teeth portion 4, interior teeth portion is engaged in the outer toothed portion 5 of support shaft 2.Interior teeth portion 4 and outer toothed portion 5 are so mutually matched, so that
Cam member 3 can be axially moveable about the longitudinal axis 20 of support shaft 2, however simultaneously with the antitorque connection of support shaft 2.
Cam member 3 is fixed on the two different movements of longitudinally 20 direction relative to support shaft 2 by lockable mechanism 6
Position.
Support shaft 2 is clearly shown in Fig. 2, and support shaft has first axle section 21, first axle section forms outer
Teeth portion 5.Support shaft 2 also has the second shaft portion section 12 of not teeth portion, and the second shaft portion section has the side surface 11 of not protrusion,
The side surface circularly implement in cross-section.Two shaft segments 21,12 of support shaft 2 are along axial interconnection.
Lockable mechanism 6 is located in the transverse holes 22 in the second shaft portion section 12 and the sleeve including being fixed in transverse holes 22
10, the lock body 7 and compressed spring 17 for guiding and being configured to ball be can be longitudinally moved in sleeve, the compressed spring is in cross
It is tensioned between the bottom and lock body 7 in hole 22.The outboard end section 16 of sleeve 10 is stretched out relative to side surface 11.From bearing
The axial sides of axis 2 see that as shown in FIG. 3, end section 16 covers outer toothed portion 5, therefore sleeve 10 exceeds the tooth of outer toothed portion 5
Root circle.
The lock that lock body 7 is shown in FIG. 4 on corresponding shift position of the cam member 3 relative to support shaft 2 with two
Only slot 8a or 8b mating reaction.It is seen along axial direction, two lock grooves 8a, 8b are by the ground separated from one another of intermediate isolating portion 23 and simultaneously
Row ground arrangement.In first movement position of the cam member 3 relative to support shaft 2, lock body 7 is snapped onto the first lock groove 8a.?
Cam member 3 is relative to support shaft 2, the second shift position for being axially disposed offset relative to first movement position, lock body 7
It is moved into the second lock groove 8b.Therefore, variation of the cam member 3 relative to the axial position of support shaft 2 is generated, so that having not
The different cam regions 19 and internal combustion engine of same cam contour or the cam contour (referring to Fig. 5) with offsetting with one another arranged
Corresponding valve mating reaction.The internal diameter in intermediate isolating portion 23 is greater than the root diameter of interior teeth portion 4.
According to the present invention, as shown in Figure 4 and Figure 6, there are at least one tooth socket 9, i.e., the first tooth for having in interior teeth portion 4
The tooth socket of slot 9a and the second tooth socket 9b are to 13.The tooth socket is matched to 13 with the extension of sleeve 10, wherein cam member 3 can be from
The axial side of the separate outer toothed portion 5 of side surface 11 is set out, and is surmounted 10 ground of sleeve and is pushed in outer toothed portion 5.Therefore, interior teeth portion 4 exists
It leaves room in the region of tooth socket 9a and 9b, so that cam member 3 can be in the case where not colliding the stopper section on sleeve 10
It is pushed in support shaft 2.
Tooth socket two to 13 single tooth socket 9a and 9b are divided each other in size and geometry by means of single center tooth 14
It separates.In order to shift cam member 3 in support shaft 2 onto, corresponding tooth socket 9a and 9b is aligned with one in protrusion 15,
In, the region interior orientation of center tooth 14 between tooth socket 9a and 9b in (radial line is formed) ball central axes 18.Because of end
Section 16 radially stretches out at least in the region of the central axes 18, so need not be same in the region of central axes 18
Remove center tooth 14.Lock body 7, and can edge when cam member 3 is shifted onto support shaft 2 since it can be moved into sleeve 10
It moves radially inwardly, cam member 3 is pushed in the clear.
Focal point in Fig. 6 is, is not that a tooth socket pair is only arranged in interior teeth portion 4 in this embodiment
13 but setting two tooth sockets to 13.The two tooth sockets design substantially the samely 13 and circumferentially offset with one another 180 ° of ground
To arrange.Cam member 3 is used as general part to manufacture by this more particularly to realize, wherein each cam member 3 can be relative to another
Outer cam member deviates 180 ° of ground and is assemblied in support shaft 2.
For this respect, as shown in Fig. 7, it is also possible to: more than two tooth sockets pair are set in principle
13, four tooth sockets are particularly preferably set to 13, thus camshaft 1 is also particularly well applicable for four cylinder engine.In conjunction with Fig. 7
Remaining structure and remaining working principle of the second embodiment shown correspond to first embodiment.
Therefore, propose according to the present invention: cam member 3 is inserted by the tooth 9 of circumferential upper non-uniform Distribution.In other words: phase
Interior teeth portion for having circumferential equally distributed tooth, traditional, in cam member 3, at least in the circumferential area of locking hole 22
Tooth is saved in domain.Therefore, cam member 3 only has 20 or 22 rather than conventional tooth 24.Can always have no using the solution
Assemble to problem cam member 3.On the position that contact can be generated originally between the teeth portion 4 on cam member 3 and the sleeve 10 stretched out,
It is now no longer with teeth.Equally, the clamping between ball 7 and sleeve 10 can not generate again.Sleeve 10 may due to lacking tooth and
Further stretch out, and thereby guarantee that: ball 7 is in always below the top edge of sleeve 10 with central point.
Lack tooth another advantage is that lock groove 8a, 8b in cam member 3 can be deviated radially upward.Due to
The radial deflection of lock groove 8a, 8b, it is no longer necessary to the additional deburring process in guide groove 8a, 8b.
Reference signs list
1 camshaft
2 support shafts
3 cam members
4 interior teeth portions
5 outer toothed portions
6 lockable mechanisms
7 lock bodies
The first lock groove of 8a
The second lock groove of 8b
9 tooth sockets
The first tooth socket of 9a
The second tooth socket of 9b
10 sleeves
11 side surfaces
12 shaft segments/the second shaft portion section
13 tooth sockets pair
14 center tooths
15 protrusions
16 end sections
17 compressed springs
18 ball central axes
19 cam areas
20 longitudinal axis
21 first axle sections
22 transverse holes
23 intermediate isolating portions
Claims (6)
1. a kind of camshaft (1) for internal combustion engine, the camshaft has support shaft (2), cam member (3) and lockable mechanism
(6), the cam member is pushed in the outer toothed portion (5) of the support shaft (2) by interior teeth portion (4), and the lockable mechanism is by institute
It states cam member (3) to be fixed at least two shift positions relative to the support shaft (2), the lockable mechanism, which has, to be fixed
Sleeve (10) in the transverse holes (22) of the support shaft (2) and the lock body (7) being contained in the sleeve, the locking
Body is separately inserted in one at least two lock grooves (8a, 8b) in the cam member (3) on the shift position,
In, two in the lock groove (8a, 8b) separate ground by intermediate isolating portion (23), are arranged side by side along axial direction, and
Wherein, the interior teeth portion (4) is provided with the tooth socket (9) being sized so that, so that the cam member (3) is with crossing sleeve (10)
It being pushed on the outer toothed portion (5), the sleeve at least partly blocks the outer toothed portion (5) from axial side,
It is characterized in that, the internal diameter of the intermediate isolating portion (23) is greater than the root diameter of the interior teeth portion (4).
2. camshaft (1) according to claim 1, which is characterized in that the sleeve (10) has end section (16), institute
It states end section radially to stretch out from the side surface (11) of the shaft segment (12) of the support shaft (2), the shaft segment is in cross
Circularly extend in section.
3. camshaft (1) according to claim 2, which is characterized in that the sleeve (10) radially outwardly exceeds institute
State the root circle of outer toothed portion (5).
4. camshaft (1) according to any one of claim 1 to 3, which is characterized in that the tooth socket (9) is tooth socket pair
(13), wherein the tooth socket passes through the center tooth (14) of arrangement between them circumferentially to two tooth sockets (9a, 9b) of (13)
It is spatially separated from one another.
5. camshaft (1) according to claim 4, which is characterized in that be uniformly distributed circumferentially on the interior teeth portion (4)
Multiple tooth sockets are arranged to (13) in ground.
6. a kind of valve actuator, for the internal combustion engine of motor vehicle, the valve actuator has according to claim 1 extremely
Camshaft described in any one of 5 (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016222713.0 | 2016-11-18 | ||
| DE102016222713.0A DE102016222713B4 (en) | 2016-11-18 | 2016-11-18 | Camshaft with cam piece with reduced number of teeth |
| PCT/DE2017/100974 WO2018091040A1 (en) | 2016-11-18 | 2017-11-16 | Camshaft for an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109891062A true CN109891062A (en) | 2019-06-14 |
| CN109891062B CN109891062B (en) | 2021-05-07 |
Family
ID=60473246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780067397.8A Expired - Fee Related CN109891062B (en) | 2016-11-18 | 2017-11-16 | Camshaft for internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109891062B (en) |
| DE (1) | DE102016222713B4 (en) |
| WO (1) | WO2018091040A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043340A (en) * | 2019-05-15 | 2019-07-23 | 杰锋汽车动力系统股份有限公司 | A kind of VVL camshaft locking structure for internal combustion engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018133403A1 (en) | 2018-12-21 | 2020-06-25 | Thyssenkrupp Ag | Camshaft, internal combustion engine and method for producing a camshaft |
| DE102021200219A1 (en) | 2021-01-12 | 2022-07-14 | Thyssenkrupp Ag | sliding cam assembly |
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| CN102132014A (en) * | 2008-06-16 | 2011-07-20 | 奥迪股份公司 | Valve train for gas exchange valves of an internal combustion engine having double-supported cam carriers |
| DE102011001661A1 (en) * | 2011-03-30 | 2012-10-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Valve train for internal combustion engine, has clearance portion that is formed axially between the centering section and torque transmitting portion |
| DE102011084043A1 (en) * | 2011-10-05 | 2013-04-11 | Schaeffler Technologies AG & Co. KG | Sliding cam system for reciprocating internal combustion engines, has sliding cams which are arranged on engine-fixed base shaft, where sliding cams have cams with cam lifting chart and base circle |
| DE102012210922A1 (en) * | 2012-06-27 | 2014-01-02 | Schaeffler Technologies AG & Co. KG | Component of variable shift cam valve train of internal combustion engine, has locking recesses formed in inner jacket of cam portion such that locking recesses are provided with same axial spacing as holes on ball detent mechanism |
| CN104364477A (en) * | 2012-06-01 | 2015-02-18 | 舍弗勒技术有限两合公司 | Main shaft for a sliding cam valve train |
| JP2015137569A (en) * | 2014-01-21 | 2015-07-30 | マツダ株式会社 | Valve gear of engine |
| US20150377094A1 (en) * | 2014-06-30 | 2015-12-31 | GM Global Technology Operations LLC | Detent assembly and a method of assembling the detent assembly |
| DE102015010751A1 (en) * | 2015-08-18 | 2016-03-03 | Daimler Ag | Camshaft and Verrasteinheit for a camshaft |
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| DE102011001660B4 (en) * | 2011-03-30 | 2020-12-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Valve drive for an internal combustion engine |
| DE102011086161A1 (en) * | 2011-11-11 | 2013-05-16 | Schaeffler Technologies AG & Co. KG | Sliding cam shaft for variable valve drive of internal combustion engine, has base shaft and one axially displaceable cam-piece, where maximum axial offset of cam-piece acting to base shaft is limited directly in radial region |
| DE102012016356A1 (en) * | 2012-08-16 | 2014-02-20 | Neumayer Tekfor Holding Gmbh | Adjustable camshaft for internal combustion engine, has shaft and cam packet, where shaft and cam packet are designed and aligned, such that shaft and cam packet are connected to each other in rotating manner |
| DE102014116252A1 (en) * | 2014-11-07 | 2016-05-12 | Thyssenkrupp Presta Teccenter Ag | Camshaft with an axially guided sliding element |
-
2016
- 2016-11-18 DE DE102016222713.0A patent/DE102016222713B4/en not_active Expired - Fee Related
-
2017
- 2017-11-16 WO PCT/DE2017/100974 patent/WO2018091040A1/en active Application Filing
- 2017-11-16 CN CN201780067397.8A patent/CN109891062B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102132014A (en) * | 2008-06-16 | 2011-07-20 | 奥迪股份公司 | Valve train for gas exchange valves of an internal combustion engine having double-supported cam carriers |
| DE102011001661A1 (en) * | 2011-03-30 | 2012-10-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Valve train for internal combustion engine, has clearance portion that is formed axially between the centering section and torque transmitting portion |
| DE102011084043A1 (en) * | 2011-10-05 | 2013-04-11 | Schaeffler Technologies AG & Co. KG | Sliding cam system for reciprocating internal combustion engines, has sliding cams which are arranged on engine-fixed base shaft, where sliding cams have cams with cam lifting chart and base circle |
| CN104364477A (en) * | 2012-06-01 | 2015-02-18 | 舍弗勒技术有限两合公司 | Main shaft for a sliding cam valve train |
| DE102012210922A1 (en) * | 2012-06-27 | 2014-01-02 | Schaeffler Technologies AG & Co. KG | Component of variable shift cam valve train of internal combustion engine, has locking recesses formed in inner jacket of cam portion such that locking recesses are provided with same axial spacing as holes on ball detent mechanism |
| JP2015137569A (en) * | 2014-01-21 | 2015-07-30 | マツダ株式会社 | Valve gear of engine |
| US20150377094A1 (en) * | 2014-06-30 | 2015-12-31 | GM Global Technology Operations LLC | Detent assembly and a method of assembling the detent assembly |
| CN105587355A (en) * | 2014-11-12 | 2016-05-18 | 保时捷股份公司 | Switching camshaft and arrangement of drivable accommodation part of switching camshaft |
| DE102015010751A1 (en) * | 2015-08-18 | 2016-03-03 | Daimler Ag | Camshaft and Verrasteinheit for a camshaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043340A (en) * | 2019-05-15 | 2019-07-23 | 杰锋汽车动力系统股份有限公司 | A kind of VVL camshaft locking structure for internal combustion engine |
| CN110043340B (en) * | 2019-05-15 | 2020-12-01 | 杰锋汽车动力系统股份有限公司 | VVL camshaft locking structure for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016222713B4 (en) | 2022-02-24 |
| WO2018091040A1 (en) | 2018-05-24 |
| DE102016222713A1 (en) | 2018-05-24 |
| CN109891062B (en) | 2021-05-07 |
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